CN115771709A - Carbon dioxide sequestration method and system - Google Patents
Carbon dioxide sequestration method and system Download PDFInfo
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- CN115771709A CN115771709A CN202211490444.9A CN202211490444A CN115771709A CN 115771709 A CN115771709 A CN 115771709A CN 202211490444 A CN202211490444 A CN 202211490444A CN 115771709 A CN115771709 A CN 115771709A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 290
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 145
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 145
- 230000009919 sequestration Effects 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 22
- VTVVPPOHYJJIJR-UHFFFAOYSA-N carbon dioxide;hydrate Chemical compound O.O=C=O VTVVPPOHYJJIJR-UHFFFAOYSA-N 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000012267 brine Substances 0.000 claims description 15
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 11
- 239000011780 sodium chloride Substances 0.000 claims description 11
- 238000012216 screening Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000004781 supercooling Methods 0.000 claims description 3
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 4
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 4
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 4
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000887 hydrating effect Effects 0.000 description 2
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a method and a system for carbon dioxide sequestration, wherein a geological model of a carbon dioxide sequestration area is established according to geological data and hydrological conditions to determine a carbon dioxide sequestration reservoir; the method comprises the steps of collecting carbon dioxide, enabling the carbon dioxide to enter supercooled water after passing through a pressurizing module and a cooling module to generate a carbon dioxide hydrate, enabling the carbon dioxide hydrate to be placed into a carbon dioxide sequestration reservoir after being injected into a closed container, monitoring the temperature of the carbon dioxide sequestration reservoir by adopting a sensor, and adjusting the height of the closed container when the monitored temperature exceeds a first threshold value to enable the carbon dioxide hydrate to be in a stable state. The carbon dioxide hydrate is generated and is sealed and stored in a closed container mode, the stability of exposure sealing is improved, and the safety of sealing can be improved through simple parameter monitoring and position adjustment.
Description
The technical field is as follows:
the invention belongs to the field of computer data processing, and particularly relates to a carbon dioxide sequestration method and system.
Background art:
the geological sequestration of carbon dioxide gas refers to the transportation and injection of high-purity carbon dioxide gas into depleted oil and gas reservoirs, deep saline water layers, coal beds and other sequestration places through pipeline technology, and is an effective and reliable sequestration mode at present. However, the supercritical state storage is much restricted by geological parameters, the earth surface monitoring difficulty is high, and once leakage occurs, adverse effects can be caused on the earth surface.
However, the carbon dioxide gas hydrate is a more special enveloping compound formed by water and carbon dioxide gas under the conditions of low temperature and high pressure. The carbon dioxide hydrate belongs to a type I hydrate, a main crystal network is formed by water molecules by means of strong hydrogen bonds, carbon dioxide gas molecules are filled in cavities in the network, and the carbon dioxide hydrate can be stably stored under the conditions of low temperature and high pressure.
At present, the monitoring and maintenance cost of the depleted oil-gas reservoir, the deep saline water layer, the coal bed and the like in the later sealing period is high, the monitoring range is wide, the difficulty is high, and the sealing equipment system is complex. Therefore, how to reduce the sealing difficulty and the monitoring difficulty of the geodetic substance is an urgent technical problem to be solved.
Disclosure of Invention
Aiming at the problems of wide monitoring range and high difficulty of target geological sequestration, the invention provides a method for establishing a geological model of a carbon dioxide sequestration area according to geological data and hydrological conditions, wherein the geological model of the carbon dioxide sequestration area comprises a saline water layer; determining a carbon dioxide sequestration reservoir according to the geological model of the carbon dioxide sequestration area and the screening conditions; calculating the mass of the maximum stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir according to the characteristic parameters of the carbon dioxide sequestration reservoir; trapping carbon dioxide, allowing the carbon dioxide to pass through a pressurizing module and a cooling module and then enter supercooled water to generate a carbon dioxide hydrate, and processing the carbon dioxide hydrate into a spherical shape; the method comprises the steps of injecting spherical carbon dioxide hydrate into a closed container by using an injection module, then placing the spherical carbon dioxide hydrate into a carbon dioxide sequestration reservoir, monitoring the temperature of the carbon dioxide sequestration reservoir by using a sensor, and adjusting the height of the closed container when the monitored temperature exceeds a first threshold value so that the carbon dioxide hydrate is in a stable state. According to the invention, a proper reservoir area is screened by constructing the geological model of the carbon dioxide sequestration area, so that the safety before sequestration and the environmental consideration are improved. The carbon dioxide hydrate is generated and is sealed and stored in a closed container mode, the stability of exposure sealing is improved, and meanwhile, the safety and the applicability of sealing can be effectively improved through multi-condition monitoring and position adjustment.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method of carbon dioxide sequestration comprising:
s1, establishing a geological model of a carbon dioxide sequestration area according to geological data and hydrological conditions, wherein the geological model of the carbon dioxide sequestration area comprises a saline water layer;
s2, determining a carbon dioxide sequestration reservoir according to the geological model of the carbon dioxide sequestration area and the screening conditions;
s3, calculating the mass of the maximum stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir according to the characteristic parameters of the carbon dioxide sequestration reservoir;
s4, trapping carbon dioxide, allowing the carbon dioxide to pass through a pressurizing module and a cooling module and then enter super-cooled water to generate a carbon dioxide hydrate, and processing the carbon dioxide hydrate into a spherical shape;
s5, injecting the spherical carbon dioxide hydrate into a closed container by using an injection module, then placing the sealed container into the carbon dioxide storage reservoir, monitoring the temperature of the carbon dioxide storage reservoir by using a sensor,
and S6, when the monitored temperature exceeds a first threshold value, adjusting the height of the closed container to enable the carbon dioxide hydrate to be in a stable state.
Further, the carbon dioxide sequestration reservoir is located above the sea floor of the non-seismic zone sea area or below the non-seismic zone abandoned oil and gas field.
Further, the characteristic parameters of the carbon dioxide sequestration reservoir include temperature, pressure, supercooling degree and saturation degree of brine.
Further, the captured carbon dioxide is passed through a pressurizing module where the pressure is set at 6MPa and the temperature of the cooling module is set at 276K. The hydrating agent is water. In order to improve the reaction efficiency, adding carbon dioxide hydrate generation promoters with set concentration, such as Sodium Dodecyl Sulfate (SDS), sodium Dodecyl Benzene Sulfonate (SDBS), tetrahydrofuran (THF), tetrabutyl bromide (TBAB), cyclopentane (CP) and the like;
further, calculating the maximum quality of the stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir stratum further comprises the steps of obtaining the saturation of brine in a brine layer in the carbon dioxide sequestration reservoir stratum, calculating the theoretical sequestration quality according to the saturation of the brine, and further calculating the number of the sealed containers;
the mass calculation model of the maximum storage carbon dioxide hydrate of the carbon dioxide sequestration reservoir is as follows:
the hydrate is obtained according to the proportion that 1 unit volume of the hydrate is 160 units volume of the hydrate,
wherein,
is the volume of the hydrate of the carbon dioxide,
the volume of carbon dioxide contained in the water before injection is 0 in the case of pure water,
in order to be able to inject the volume of carbon dioxide,
the volume of carbon dioxide contained in the injected water, P is the pressure of the carbon dioxide, and T is the temperature of the carbon dioxide; v is carbon dioxide, the volume of a carbon dioxide hydrate and the total volume of water, lambda is the ratio of the volume of saline water in a reservoir, if the reservoir is an offshore reservoir, the value is 1, if the reservoir is a geological reservoir, 0.6 is selected, S is the area of the carbon dioxide sequestration reservoir, H is the height of the carbon dioxide sequestration reservoir, and M is the mass of the carbon dioxide hydrate;
further, the sensor may also detect an altitude distance.
Further, the difference value between the pressure value in the closed container and the pressure value in the storage layer is smaller than a second threshold value.
Further, S6 also comprises that when the difference value between the pressure value in the closed container and the pressure value in the storage layer is larger than a second threshold value and the monitoring temperature exceeds a first threshold value, an alarm signal is sent out.
A carbon dioxide sequestration process system, the system comprising:
the model building module is used for building a geological model of a carbon dioxide sequestration area according to geological data and hydrological conditions, wherein the geological model of the carbon dioxide sequestration area comprises a saline water layer;
the screening module is used for determining a carbon dioxide sequestration reservoir according to the geological model of the carbon dioxide sequestration area and screening conditions;
the reserve calculation module is used for calculating the mass of the maximum stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir according to the characteristic parameters of the carbon dioxide sequestration reservoir;
the carbon dioxide hydrate generation module is used for trapping carbon dioxide, allowing the carbon dioxide to pass through the pressurization module and the cooling module and then enter the super-cooled water to generate a carbon dioxide hydrate, and processing the carbon dioxide hydrate into a spherical shape;
the sealing injection module is used for injecting the spherical carbon dioxide hydrate into the closed container by adopting the injection module, then placing the spherical carbon dioxide hydrate into the carbon dioxide sealing reservoir stratum, and simultaneously monitoring the temperature of the carbon dioxide sealing reservoir stratum by adopting a sensor,
the monitoring module is used for adjusting the height of the closed container when the monitored temperature exceeds a first threshold value, so that the carbon dioxide hydrate is in a stable state, and if the difference value between the pressure value in the closed container and the pressure value of the storage layer is greater than a second threshold value and the monitored temperature exceeds the first threshold value, sending an alarm signal to the cloud end;
a computer-readable storage medium storing a computer program, wherein a processor executes the computer program to implement a carbon dioxide sequestration method.
A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement a carbon dioxide sequestration approach. .
The invention has the following beneficial effects:
1) By constructing a geological model of the carbon dioxide sequestration area, a suitable reservoir area is screened, and safety and environmental consideration before sequestration are improved.
2) The carbon dioxide hydrate is generated and is sealed and stored in a closed container mode, the stability of exposure sealing is improved, and meanwhile, the safety and the applicability of sealing can be effectively improved through multi-condition monitoring and position adjustment.
3) By arranging the sealed container and enabling the internal pressure and the external pressure of the sealed container to be consistent, the stability of the sealed carbon dioxide hydrate can be further improved, and even if the sealed container is damaged, the carbon dioxide hydrate can still stably exist in the sealed container or a carbon dioxide sealing area; if the external environment is changed greatly, the position of the sealed container can be adjusted to be in a stable state.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above description and other objects, features, and advantages of the present invention more clearly understandable, preferred embodiments are specifically described below.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a carbon dioxide sequestration system
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Example 1
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method of carbon dioxide sequestration comprising:
s1, establishing a geological model of a carbon dioxide sequestration area according to geological data and hydrological conditions, wherein the geological model of the carbon dioxide sequestration area comprises a saline water layer;
s2, determining a carbon dioxide sequestration reservoir according to the geological model of the carbon dioxide sequestration area and the screening conditions;
s3, calculating the mass of the maximum stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir according to the characteristic parameters of the carbon dioxide sequestration reservoir;
s4, trapping carbon dioxide, allowing the carbon dioxide to pass through a pressurizing module and a cooling module and then enter super-cooled water to generate a carbon dioxide hydrate, and processing the carbon dioxide hydrate into a spherical shape;
s5, injecting the spherical carbon dioxide hydrate into a closed container by using an injection module, then placing the sealed container into the carbon dioxide storage reservoir, monitoring the temperature of the carbon dioxide storage reservoir by using a sensor,
and S6, when the monitored temperature exceeds a first threshold value, adjusting the height of the closed container to enable the carbon dioxide hydrate to be in a stable state.
Further, the carbon dioxide sequestration reservoir is located above the sea floor of the non-seismic zone sea area or below the non-seismic zone abandoned oil and gas field.
Further, the characteristic parameters of the carbon dioxide sequestration reservoir include temperature, pressure, supercooling degree and saturation degree of brine.
Further, the step of calculating the maximum quality of the stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir further comprises the steps of obtaining the saturation of brine in a brine layer in the carbon dioxide sequestration reservoir, and calculating the theoretical sequestration quality according to the saturation of the brine.
Further, the sensor may also detect an altitude distance.
Further, the difference value between the pressure value in the closed container and the pressure value in the storage layer is smaller than a second threshold value.
Further, S6, when the difference value between the pressure value in the closed container and the pressure value in the storage layer is larger than a second threshold value and the monitored temperature exceeds a first threshold value, sending an alarm signal.
Further, the captured carbon dioxide is passed through a pressurizing module where the pressure is set at 6MPa and the temperature of the cooling module is set at 276K. The hydrating agent is water. In order to improve the reaction efficiency, adding carbon dioxide hydrate generation accelerators with set concentration, such as Sodium Dodecyl Sulfate (SDS), sodium Dodecyl Benzene Sulfonate (SDBS), tetrahydrofuran (THF), tetrabutyl bromide (TBAB), cyclopentane (CP) and the like;
further, calculating the maximum quality of the stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir stratum further comprises the steps of obtaining the saturation of brine in a brine layer in the carbon dioxide sequestration reservoir stratum, calculating the theoretical sequestration quality according to the saturation of the brine, and further calculating the number of the sealed containers;
the mass calculation model of the maximum storage carbon dioxide hydrate of the carbon dioxide sequestration reservoir is as follows:
the hydrate is obtained according to the proportion that 1 unit volume of the hydrate is 160 units volume of the hydrate,
wherein,
is the volume of the hydrate of the carbon dioxide,
the volume of carbon dioxide contained in the water before injection is 0 in the case of pure water,
to be the volume of carbon dioxide injected,
the volume of carbon dioxide contained in the injected water, P is the pressure of the carbon dioxide, and T is the temperature of the carbon dioxide; v is carbon dioxide, the volume of a carbon dioxide hydrate and the total volume of water, lambda is the ratio of the volume of saline water in a reservoir, if the reservoir is an offshore reservoir, the value is 1, if the reservoir is a geological reservoir, 0.6 is selected, S is the area of the carbon dioxide sequestration reservoir, H is the height of the carbon dioxide sequestration reservoir, and M is the mass of the carbon dioxide hydrate;
further, the seal is easily provided with displacement means, or support means;
example 2
A carbon dioxide sequestration process system, the system comprising:
the model building module is used for building a geological model of the carbon dioxide sequestration area according to geological data and hydrologic conditions, wherein the geological model of the carbon dioxide sequestration area comprises a saline water layer;
the screening module is used for determining a carbon dioxide sequestration reservoir according to the geological model of the carbon dioxide sequestration region and screening conditions;
the reserve calculation module is used for calculating the maximum quality of the carbon dioxide hydrate stored in the carbon dioxide sequestration reservoir according to the characteristic parameters of the carbon dioxide sequestration reservoir;
the carbon dioxide hydrate generating module is used for capturing carbon dioxide, enabling the carbon dioxide to enter supercooled water after passing through the pressurizing module and the cooling module, generating carbon dioxide hydrate, and processing the carbon dioxide hydrate into a spherical shape;
the sealing injection module is used for injecting the spherical carbon dioxide hydrate into the closed container by adopting the injection module, then placing the spherical carbon dioxide hydrate into the carbon dioxide sealing reservoir stratum, and simultaneously monitoring the temperature of the carbon dioxide sealing reservoir stratum by adopting a sensor,
the monitoring module is used for adjusting the height of the closed container when the monitored temperature exceeds a first threshold value, so that the carbon dioxide hydrate is in a stable state, and if the difference value between the pressure value in the closed container and the pressure value of the storage layer is greater than a second threshold value and the monitored temperature exceeds the first threshold value, sending an alarm signal to the cloud;
a computer-readable storage medium storing a computer program, wherein a processor executes the computer program to perform a carbon dioxide sequestration approach.
A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement a carbon dioxide sequestration approach.
The invention has the following beneficial effects:
by constructing a geological model of the carbon dioxide sequestration area, a suitable reservoir area is screened, and safety and environmental consideration before sequestration are improved.
The carbon dioxide hydrate is generated and is sealed and stored in a closed container mode, the stability of exposure sealing is improved, and meanwhile, the safety and the applicability of sealing can be effectively improved through multi-condition monitoring and position adjustment.
By arranging the sealed container and enabling the internal pressure and the external pressure of the sealed container to be consistent, the stability of the sealed carbon dioxide hydrate can be further improved, and even if the sealed container is damaged, the carbon dioxide hydrate can still stably exist in the sealed container or a carbon dioxide sealing area; if the external environment is changed greatly, the position of the sealed container can be adjusted to be in a stable state.
According to the invention, through parameter adjustment at the cloud server, the problem of dizziness caused by focusing conflict in vision is solved, the picture setting operation is simplified, meanwhile, the interaction experience efficiency is improved through an improved gesture recognition mode, and the virtual reality environment interaction mode recognition efficiency is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A carbon dioxide sequestration method is characterized in that:
s1, establishing a geological model of a carbon dioxide sequestration area according to geological data and hydrological conditions, wherein the geological model of the carbon dioxide sequestration area comprises a saline water layer;
s2, determining a carbon dioxide sequestration reservoir according to the geological model of the carbon dioxide sequestration area and the screening condition;
s3, calculating the mass of the maximum stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir according to the characteristic parameters of the carbon dioxide sequestration reservoir;
s4, trapping carbon dioxide, allowing the carbon dioxide to pass through a pressurizing module and a cooling module and then enter super-cooled water to generate a carbon dioxide hydrate, and processing the carbon dioxide hydrate into a spherical shape;
s5, injecting the spherical carbon dioxide hydrate into the closed container by adopting an injection module, then placing the spherical carbon dioxide hydrate into the carbon dioxide sequestration reservoir, simultaneously monitoring the temperature of the carbon dioxide sequestration reservoir by adopting a sensor,
and S6, when the monitored temperature exceeds a first threshold value, adjusting the height of the closed container to enable the carbon dioxide hydrate to be in a stable state.
2. The method for sequestration of carbon dioxide according to claim 1, characterized in that: the carbon dioxide sequestration reservoir is located above the sea floor of the non-seismic zone or below the abandoned oil and gas field of the non-seismic zone.
3. The method for sequestration of carbon dioxide according to claim 1, characterized in that: the characteristic parameters of the carbon dioxide sequestration reservoir include temperature, pressure, supercooling degree and saturation degree of brine.
4. The method for sequestration of carbon dioxide according to claim 1, characterized in that: and calculating the maximum quality of the stored carbon dioxide hydrate of the carbon dioxide sequestration reservoir, and further comprising the steps of obtaining the saturation of the brine in the brine layer in the carbon dioxide sequestration reservoir, and calculating the theoretical sequestration quality according to the saturation of the brine.
5. The method for sequestration of carbon dioxide according to claim 1, characterized in that: the sensor may also detect an altitude distance.
6. The method for sequestration of carbon dioxide according to claim 1, characterized in that: the difference value between the pressure value in the closed container and the pressure value in the storage layer is smaller than a second threshold value.
7. The method for sequestration of carbon dioxide according to claim 1, characterized in that: s6, sending an alarm signal when the difference value between the pressure value in the closed container and the pressure value in the storage layer is larger than a second threshold value and the monitoring temperature exceeds a first threshold value.
8. A carbon dioxide sequestration process system, the system comprising:
the model building module is used for building a geological model of a carbon dioxide sequestration area according to geological data and hydrological conditions, wherein the geological model of the carbon dioxide sequestration area comprises a saline water layer;
the screening module is used for determining a carbon dioxide sequestration reservoir according to the geological model of the carbon dioxide sequestration region and screening conditions;
the reserve calculation module is used for calculating the maximum quality of the carbon dioxide hydrate stored in the carbon dioxide sequestration reservoir according to the characteristic parameters of the carbon dioxide sequestration reservoir;
the carbon dioxide hydrate generating module is used for capturing carbon dioxide, enabling the carbon dioxide to enter supercooled water after passing through the pressurizing module and the cooling module, generating carbon dioxide hydrate, and processing the carbon dioxide hydrate into a spherical shape;
a sealing injection module which is used for placing the spherical carbon dioxide hydrate into the carbon dioxide sealing reservoir stratum after the spherical carbon dioxide hydrate is injected into the closed container by the injection module, and simultaneously monitoring the temperature of the carbon dioxide sealing reservoir stratum by a sensor,
and the monitoring and alarming module is used for adjusting the height of the closed container when the monitoring temperature exceeds a first threshold value, so that the carbon dioxide hydrate is in a stable state, and if the difference value between the pressure value in the closed container and the pressure value of the storage layer is greater than a second threshold value and the monitoring temperature exceeds the first threshold value, an alarming signal is sent to the cloud.
9. A computer-readable storage medium storing a computer program, wherein execution of the computer program by a processor implements the carbon dioxide sequestration method of any one of claims 1-7.
10. A terminal device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the carbon dioxide sequestration method as recited in any one of claims 1-7.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118637254A (en) * | 2024-08-09 | 2024-09-13 | 中国科学院地质与地球物理研究所 | A method for enhanced carbon dioxide hydrate storage using cold seawater injection |
| CN118822116A (en) * | 2024-09-20 | 2024-10-22 | 中国华能集团清洁能源技术研究院有限公司 | Carbon dioxide storage management method and device, storage medium and electronic device |
| CN121184751A (en) * | 2025-11-27 | 2025-12-23 | 新疆敦华绿碳技术股份有限公司 | Ionic composite hydrate promoter for carbon sequestration |
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